Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:29:26 2013 Optimize a model with 89488 rows, 88548 columns and 353628 nonzeros Presolve removed 94 rows and 0 columns Presolve time: 0.44s Presolved: 89394 rows, 88548 columns, 353534 nonzeros Variable types: 88454 continuous, 94 integer (94 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8850 8.2267695e+04 7.613813e+04 0.000000e+00 5s 10550 8.3279112e+04 9.114567e+05 0.000000e+00 10s 12250 8.3602560e+04 1.824842e-02 0.000000e+00 16s 12252 8.3602562e+04 0.000000e+00 0.000000e+00 16s Root relaxation: objective 8.360256e+04, 12252 iterations, 15.60 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 83602.5624 0 76 - 83602.5624 - - 16s H 0 0 169849.00000 83602.5624 50.8% - 25s 0 0 121827.553 0 15 169849.000 121827.553 28.3% - 58s H 0 0 164989.31438 121827.553 26.2% - 58s H 0 0 146484.00000 121827.553 16.8% - 59s 0 0 128318.900 0 13 146484.000 128318.900 12.4% - 64s 0 0 129363.378 0 4 146484.000 129363.378 11.7% - 67s H 0 0 139374.38915 129363.378 7.18% - 67s H 0 0 138284.00000 129363.378 6.45% - 67s H 0 0 129908.00000 129363.378 0.42% - 68s 0 0 129397.356 0 3 129908.000 129397.356 0.39% - 68s 0 2 129405.642 0 3 129908.000 129405.642 0.39% - 73s H 4 3 129759.77586 129564.734 0.15% 273 74s H 5 4 129715.42405 129575.431 0.11% 292 74s H 7 6 129678.60976 129575.431 0.08% 211 74s * 9 6 8 129669.00000 129575.431 0.07% 170 74s 11 5 129643.902 2 2 129669.000 129616.866 0.04% 208 75s Cutting planes: Implied bound: 93 Explored 19 nodes (35428 simplex iterations) in 75.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296690000000e+05, best bound 1.296690000000e+05, gap 0.0%